![]() There is one more item in the BMI calculator for teens that we haven’t mentioned yet, BMI prime. However, for teens and kids that are still developing there are only 4 categories recognized by WHO: Underweight (lower than 5th), Normal/Healthy (5th-85th), Overweight (85th-95th) and Obese (higher than 95th). For the adult population each of these groups represents a different BMI category. Since making a distinction between the 72nd and the 73rd percentile is effectively irrelevant, percentiles are typically group according to the BMI categories they represent.įor example, in this calculator, we follow WHO (World Health Organization) ruling and group the percentiles of BMI for teens in 10 groups: lower than 5th, 5th-10th, 10th-25th, 25th-50th, 50th-75th, 75th-85th, 85th-90th, 90-95th, higher than 95th. So if your BMI is in the 30th percentile, that means that your BMI is higher than 30% of the population. The percentile is the position you occupy in the BMI range in comparison with the rest of your population. For easy comparison, BMI is typically divided into percentiles or percentile groups. This is not to say that BMI is useless since most of the population is ‘averagely healthy’, but just that it needs to be taken with a pinch of salt. BMI ranges and BMI charts are constructed using data from people’s actual body mass indexes, so this can skew the results. These shortcomings of BMI are due to its statistical nature. The second thing to note is that BMI doesn’t take into account body types and body shapes, so if you have an uncommon or extreme body type, your BMI might not be a good indicator of your health. This means that athletes and very active people might have “unhealthy” BMI values despite being totally healthy. The first thing to know is that BMI is meant as a measurement for sedentary people. We have talked in great detail about the flaws of a statistical tool for assessing the health of one individual in the general BMI calculator, but, as long as we set some constraints, BMI can still be useful. In fact, BMI was always designed to be a statistical comparison tool to asses a state of a person’s body. It is useless to talk about BMI without a point of reference or comparison. If you desire to calculate the BMI of a person who is not a teenager, we have designed different BMI calculators for all population groups. The calculator is designed specifically for the BMI of teenagers, as it will give you extra information about how your BMI relates to this population group. Obtaining your BMI is very simple and can be done by simply diving your weight by your height squared, as shown in the BMI formula:Īs you can see it is not rocket science to calculate your BMI, but for those lazy amongst us (trust us, you’re not alone) we have made this task even simpler with the BMI calculator for teens. This is true even in imperial countries like the USA. ![]() The most widely used units are those in metric (that is meters for length/height and kilograms for weight). BMI stands for Body Mass Index and it is a measurement of a persons weight in relation to their height. Many of you probably already know what BMI is, but for those who don’t and to have a complete picture, let’s talk briefly about its definition.
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